"Sexy Blue Striped Shirt Girl", also known by the acronym SBSSG, is the nickname, coined by fans, given to the survivor depicted by Faith Fay who is a middle-sectionsurvivor of Flight 815. The character has developed a minor cult following in various fan forums. The nickname comes from a blue striped shirt that she wears in the airport scenes and early beach scenes. The character's final appearance was in "Fire + Water", because Faith Fay then moved to California and ended work on Lost.

Faith Fay, the actress who portrays Sexy Blue Striped Shirt Girl, has done a Lostpedia interview describing her character's backstory. In the interview, Faith states that she would have been willing to return to Lost if the producers had wanted her back.

On the Island

Days 1-44 (Season 1)

The Sexy Blue Striped Shirt Girl appeared during the initial aftermath of the crash and helped other injured survivors. At night while recovering, she heard the roars of what the survivors have come to name “The Monster” in the jungle.

She was also present for a portion of the day with Craig and the next day she with the group gathered wood for the mass funeral, and attended the funeral for crash victims. The next day she is seen with Jerome in the morning, and she, with the camp, saw a woman drowning in the sea, however they were unable to help her. At night when the group turns on Boone for stealing water, she was with Scott and listened to Jack make his "live together, die alone" speech. ("Walkabout")("White Rabbit")

When the tide shifted, she assisted the other survivors in salvaging the luggage which was floating into the ocean. That night, she joined her fellow camp in moving down the beach, and spent the night with Craig. A few days later, she was seen folding clothes with Richard. ("Whatever the Case May Be")("Outlaws")

When Walt sets fire to the raft, Michael blames Jin and delivers a beating to Jin. "Sexy Blue Striped Shirt Girl" witnessed it with many other people. ("...In Translation")

She was present with the entire camp when Claire showed her newborn son to the camp. The next day she attended Boone's funeral and then witnessed the return of Locke who claimed responsibility for the accident, and was attacked by Jack. ("Do No Harm")("The Greater Good")

When Danielle Rousseau arrived at the camp to deliver her dire warning about “the Others”, she was present to hear this, and later was witness to the black smoke that filled the sky, as she was helping the party with the raft. When Jack delivered his speech about gathering in the caves, she packed her supplies and prepared to leave. When the raft launched, she was present on the beach to say goodbye with her arm around Craig. ("Exodus, Part 1")

Days 46-55 (Season 2)

A few days later, the "Sexy Blue Striped Shirt Girl" walked along the beach and was present when Hurley passed out food from the Hatch. She also joined her fellow survivors on the beach to welcome the return of Jin, and the new additions of Bernard and Libby when they arrived after walking from the other side of the Island. ("Everybody Hates Hugo")("Collision")